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Process Gas Applications

Gasification or Pyrolysis
Steam Reforming or SMR
Heat Treatment
Steel Making
Natural Gas
In-situ Process Gas
Biogas Analysis

Gasification or Pyrolysis

Gasification and pyrolysis are energy-intensive processes that attempt to convert carbon-based raw material such as coal, biomass (waste wood, rish husk, sawdust, sugarcane bagasse, coffee shell, Poultry litter, palm shell), RDF, MSW, plastic, tyre, etc., into more convenient energy like synthetic gas (syngas for short) or oils by controlling the conditions of temperature and oxygen level. Generally gasification occurs in low oxygen or steam while pyrolysis occurs in the absence of oxygen or other reagents. For these applications we have PCT-approved syngas analyzers with the following configurations available.

Recommended Measured Gas and Range	Recommended Analyzer	Features
H2:0-75% (TCD) CO:0-75% (NDIR) CO2:0-50% (NDIR) CH4:0-20% (NDIR) O2:0-25% (ECD) CnHm:0-5% (NDIR) C2H4:0-5%(NDIR) C2H2:0-5%(NDIR)	Gasboard-3100P	Portable/ RS232/ RS485/ data record/ in-built sampling pump
	Gasboard-3100	Rack type/ RS232/ RS485 / 4-20mA output/ data logging
	Gasboard-9021	7*24 monitoring/ sampling conditioning unit/ PLC control

Measurement of C2H2, C2H4 are recommended when the feedstock contains plastic, tyre, etc.

Steam Reforming or Steam Methane Reforming (SMR)

Steam reforming or steam methane reforming (SMR)is a method for producing syngas (mainly hydrogen and carbon monoxide) by reaction of hydrocarbons with water in catalytic reactors. Commonly natural gas, liquid gas or naphtha can be used as the feedstock. It is the most extensively used process for hydrogen production. For such process, our NDIR based syngas analyzer can be good options.

Recommended Measured Gas and Range	Recommended Analyzer	Features
CO: 0-50% (NDIR) CO2:0-50% (NDIR) H2: 0-100% (TCD) CH4: 0-100% (NDIR)	Gasboard-3100P	Portable/ RS232/ RS485/ data record/ in-built sampling pump
	Gasboard-3100	Rack type/ RS232/ RS485 / 4-20mA output/ data logging
	Gasboard-9021	7*24 monitoring/ sampling conditioning unit/ PLC control

Heat Treatment

Heat treatment is the process of using heat at various, staged levels to change the physical properties of metal or alloy in a furnace. Besides heat, the furnace also requires specific operating atmospheres to ensure desired carbon content in metal or alloy. The composition of the specific atmosphere (generally it includes CO, CO2 and CH4 ) is of prime importance to these applications and must be controlled and monitored by using gas analysis systems to achieve the designed material quality and consistency. Gasboard-9021 can be a great solution.

Recommended Measured Gas and Range	Recommended Analyzer	Features
CO: 0-50% (NDIR) CO2:0-2% (NDIR) CH4: 0-50% (NDIR)	Gasboard-9021	7*24 monitoring/ sampling conditioning unit/ PLC control

Steel Making

Steel Making Gas Mixture /Blast Furnace Top Gas/Coke Gas/Converter Furnace Gas

Steel making is a heavy industry that involves the process of producing steel from iron ore, direct reduced iron products, and/or scrap. And Blast Furnaces dominates the production and supply of metallic units for steelmaking. In blast furnace large quantities of gas (top gas, often contains CO CO2 CH4 H2 O2)are formed at the top of the blast furnace as a result of the reduction of iron ore and the combustion of injected coal by injected blast air. Gas analysis system Gasboard-9021 is recommended to optimize the blast furnace process, including reducing the consumption rate of coke and controlling the temperatures inside the furnace.

Recommended Measured Gas and Range	Recommended Analyzer	Features
CH4: (0~30)%(NDIR) CO2: (0~50)%(NDIR) CO: (0~30)%(NDIR) H2: (0~10)%(TCD) O2: (0~5)%(ECD)	Gasboard-9021	7*24 monitoring/ sampling conditioning unit/ PLC control

Natural Gas

Natural Gas or coal bed gas is a naturally occurring mixture of hydrocarbon and non-hydrocarbon gases found in porous geological formations (reservoirs) beneath the earth’s surface. The chemical composition and heating value (Btu content) of natural gas can vary widely depending upon the reservoir source, processing and conditioning steps, and final treatment performed by the supplier. It is important to determine gas composition and heat value of natural gas before it is used as fuel gas or feedstock for hydrogen generation, ammonia production, and a source of light hydrocarbons for chemical synthesis. Laser Raman Gas Analyzer LRGA-3100 and LRGA-6000 can be used to tackle this hard job.

Recommended Measured Gas and Range	Recommended Analyzer	Features
CO:0-100% CO2:0-100% CH4: 0-100% C2H2:0-100% C2H4:0-100% C2H6:0-100% C3H8:0-100% H2:0-100% O2:0-100% N2:0-100% H2S:0-100%	LRGA-3100	Rack type/ RS232/ RS485/ 4-20mA output/ data logging
	LRGA-6000	7*24 monitoring/ Sampling& Conditioning unit/ PLC control

In-situ Process Gas Analysis

In some industrial processes, especially those involving stack emission, safety monitoring and controlling, instant measurement or harsh gas condition, in-suit gas analyzer will be more suitable than the extractive type gas analyzers, because it can be mounted directly at the measurement site without extra sample gas conditioning system.In-situ process gas analyzer GASTDL-3100 manufactured by Cubic Instruments can provide direct measurement of O2, CO, CO+CO2, CH4 with different ranges as follows.

Recommended Measured Gas and Range	Recommended Analyzer	Features
CH4: 0-1000ppm/0-5000ppm/0-1%/0-10%/0-20%	GASTDL-3100	In-situ/ Explosion-proof/ IP66
O2:0-1%/0-2%/0-5%/0-10%/0-25%/0-21%/0-50%
CO:0-1000ppm/0-10000ppm/0-3%/0-10%/0-30%/0-60%/0-100%
CO:0-60% CO2:0-20%
CO:0-100% CO2:0-100%

Biogas Analysis

Biogas can be produced via different ways such as anaerobic digestion, landfill, wastewater treatment, and it can be used for direct combustion including heating, cooling, cooking, space drying, and gas turbines. It may also be used in fueling internal combustion engines and fuel cells for production of mechanical work and/or electricity after cleaning and upgrading. For better usage of biogas and process optimization, it is important to know the biogas composition at different points during the whole process. And for different measurement points, we have different measurement solutions.

Recommended Measured Gas and Range	Recommended Analyzer	Features
CH4: 0-100%(NDIR) CO2: 0-50%(NDIR) O2: 0-25%(ECD) H2S: 0-9999ppm(ECD) Or H2S:0-9999ppm (UV-DOAS) Or H2S:0-500ppm (UV-DOAS) Or H2S: 0-500-5000ppm(UV-DOAS)	Gasboard-3200PLUS	Handheld/ USB/ battery/ In-built memory
	Gasboard-3200UV	Rack type/ long life H2S sensor/ RS232/ RS485 / 4-20mA output/ data logging
	Gasboard-3200	Rack type/ long life H2S sensor/ RS232/ RS485 / 4-20mA output/data logging
	Gasboard-3500	Wall mounted/ ex-proof/ RS232/ RS485/ 4-20mA/data logging
	Gasboard-3500UV	7*24 monitoring/ Ex-proof/long life H2S sensor/ Gasboard-3500/ Multi-Sampling/Conditioning unit

Remark: The above recommend measurment range are just for reference, if you have your own requirement on measurment component and range, please feel free to diccuss with us for further options.

Measurement Points:
1.Downstream of Biogas Digester or Landfill Wells 2.Downstream of H2S Scrubber 3.Upstream of Biogas Flare 4.Upstream of distribution to families 5.Upstream of Biogas Generator/ CHP 6.Downstream of Biogas Upgrading

Related Products

Gasboard-3500UV: Gasboard-3500UV is the new generation biogas monitoring system that primarily designed based on UV-DOAS technology to measure H2S concentration precisely before and after H2S scrubber, and extended with modular sensor of CH4 (NDIR), CO2(NDIR) and O2 (ECD) to realize online continuously monitoring of biogas quality without purging cycle required.The 2 sampling channels design before and after scrubber enable it to provide an ideal solution to guarantee the H2S scrubber efficiency, protect downstream expensive equipment from the damage of overload H2S, minimize the investment for users and optimize the biogas monitoring process.

Gasboard-3500: EX-proof Online Biogas Analysis System Gasboard-3500 is an online monitoring system with wall-mounted ex-proof enclosure, mainly used for continuous measuring CH4, CO2, O2, H2S in different biogas, landfill gas, biomethane gas applications. Modular sensor design enables easy maintenance. With flexible gas conditioning system, it could be used in tropical /cold regions. It consists of three parts: pretreatment unit, control unit and analysis unit. It can implement sampling, drainage and other operations automatically and achieve 24 hours unattended working conditions.

Gasboard-3200UV: Gasboard-3200UV is the new generation rack type biogas analyzer that primarily designed based on UV-DOAS technology to measure H2S concentration precisely before and after H2S scrubber, and extended with modular sensor of CH4(NDIR), CO2(NDIR) and O2(ECD) to realize online continuously monitoring of biogas quality without purging cycle required.The dual measurement ranges of UV-H2S detector makes it very suitable to be used to monitor H2S concentration difference before and after scrubber. It provides an ideal solution to guarantee the H2S scrubber efficiency, protect downstream expensive equipment from the damage of overload H2S, minimize the investment for users and optimize the biogas monitoring process.

Gasboard-3200: Gasboard-3200 online biogas analyzer is a rack type analyzer with standard 3U enclosure which is very convenient for system integration or bench top use in lab. It's designed to measure CH4, CO2, H2S and O2 concentration simultaneously in different biogas applications, like landfill, water treatment, CDM projects, anaerobic digestion and other fermentation processes.

Gasboard-3200Plus: Gasboard-3200Plus Handheld Biogas Analyzer is designed to measure CH4, CO2, O2, H2S and optional H2, CO gases in biogas. This model is powered by lithium battery and with very compact design that very suitable for remote use onsite. It is modular sensor design ensures easy on operation and maintenance.It is very suitable for research purpose or daily inspection in different biogas applications such as Anaerobic Digestion, landfill, wastewater treatment, biomethane and so on.

Gasboard-3100P: Gasboard-3100P is a portable syngas analyzer based on NDIR ,TCD and electrochemical technology, it can simultaneously measure CO, CO2, CH4, H2 , O2 , CnHm, C2H2 , C2H4 or any of their combination and calculate heat value.

Gasboard-3100: Gasboard-3100 is a stationary syngas analyzer based on NDIR ,TCD and electrochemical technology, it can simultaneously measure CO, CO2, CH4, H2 , O2 , CnHm, C2H2 , C2H4 or any of their combination and calculate heat value.

Gasboard-9021: Gasboard-9021 is a continuously monitoring system which consist of sampling unit, pretreatment unit, gas analysis unit and PLC controlling unit, it can provide unattended real time monitoring of CO, CO2, CH4, H2 , O2 , CnHm, C2H2 , C2H4 or any of their combination for various applications

GasTDL-3100: GasTDL-3100 is a in-situ cross-stack designed laser gas analyzer based on highly selective optical measuring principle of tunable diode laser (TDL) absorption spectroscopy, it can provide real time process gas measurement under harsh conditions.

LRGA-6000: LRGA-6000 is an advanced analysis system based on laser Raman scattering principle, it can provide real time measurement for various gases on wide range with high resolution and accuracy.

LRGA-3100: Based on the principle of laser Raman scattering, which enhances, collects, processes and identifies the characteristic Raman scattering spectra of the gas to be measured and quantifies the content, LRGA-3100 can provide online real time measurement for various gases simultaneously with the shortest response time in seconds.

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